The Bars on the bottom of JP AES carts are somewhat with the Color Coding of the Stripes on the top part of Euro Carts.
I.e.
Red = Fighter
Blue = Shooter
Yellow = Puzzle
Green = Sports
But also JP carts have Purple, Red,and dark blue variations... For Instance (according to my carts)
Sam Sho 1 - Purple
Sam Sho 2 - Red
Sam Sho 3 - Green
Sam Sho IV - Purple
Sam Sho V Special - Red
The text on the JP bars vary from game type to game type
I.e. Kof 97 - Team Battle Action Game - チーム戦闘行為のゲーム (Not a correct translation) - Red
Waku Waku 7 - Hyper Active Action Game - Red
Ultimate 11 - Super Real Soccer Game - Yellow
Sonic Wings 3 - Real Shooting Game - Yellow
Kabuki Klash: Far East of Eden - Blue
Pulstar - Super Visual Shooting game - purple
Samurai Shodown - Katana Battle Action Game (although Sam Sho 1/2 have slightly different text than Sam Sho 3-5s)
Legend of Success Joe - Boxing Action Game - Red
Real Bout 2 - Real Battle Action game - Red
et cetera.
A person who understands Japanese could give a more in depth account...
Like xtoo_short20x likes to point out "SNK was inconsistent with its releases."